# Sealant spray K2 B441 (Osram K2) transparent silicone rubber 400 ml for gutters, chimneys, roofs

**URL:** https://aio.lv/en/product--k2-b441--11872483
**Data updated:** 2026-03-09 20:36 (EET)
**Category:** Paints and varnishes
**Manufacturer:** K2
**Manufacturer code:** B441
**EAN:** 5906534021274
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--k2-b441--11872483

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Transparent silicone rubber sealant spray K2 B441 (Osram K2) in a 400 ml aerosol can. Designed for sealing and repairing gutters, chimneys, roofs and other exterior joints and seams. Provides a flexible waterproof coating that adheres to common building materials; suitable for quick repairs and weatherproofing exposed surfaces.

## Long description

Transparent silicone rubber sealant spray K2 B441 in a 400 ml aerosol can provides a flexible waterproof coating for exterior joints and seams. Formulated for use on gutters, chimneys, roofs and similar exposed areas, this spray creates a transparent layer that adheres to common building materials and resists rain and moisture. The aerosol format allows precise application in hard-to-reach spots and supports quick, temporary or permanent repairs without the need for manual mixing.
Advantages
The silicone rubber formula delivers elasticity that accommodates thermal movement and prevents cracks. Transparent finish preserves the appearance of surfaces while sealing gaps and protecting against water ingress. The aerosol application ensures even coverage and fast curing, enabling efficient work on vertical and overhead surfaces. Suitable for direct use outdoors, it bonds to metal, tile, concrete and many synthetic materials when surfaces are clean and dry.
Suitable for
Sealing joints and seams on gutters and downpipes
Repairing leaky spots around chimneys and flashing
Sealing roof tiles, ridges and overlaps
Weatherproofing exterior connections on vents and fittings
Temporary or localized waterproof repairs on metal and masonry
Key specifications
Form: aerosol spray, 400 ml can
Material: transparent silicone rubber sealant
Application: outdoor use on roofs, gutters, chimneys and similar surfaces
Properties: flexible, waterproof, weather-resistant seal
Adhesion: suitable for metal, tile, concrete and many plastics (surface-dependent)
Curing: surface skin formation and curing time dependent on temperature and humidity
How to use
Prepare surfaces by removing loose debris, dust, oil and frost; ensure the area is dry for optimal adhesion. Shake the aerosol can thoroughly before use and test spray on a small inconspicuous area. Hold the can upright at the recommended distance and apply an even coat to the joint or damaged area, building up layers if greater thickness is needed. Allow adequate curing time between layers and after final application, following environmental conditions such as temperature and humidity for proper cross-linking.
Usage recommendations
For best results, apply at moderate temperatures and avoid use during rain or when surfaces are wet. Use personal protective equipment such as gloves and eye protection and ensure adequate ventilation when applying in confined spaces. Store the aerosol upright in a cool, dry place away from direct heat sources and open flames.

## FAQ

### How much does the Sealant spray K2 B441 400 ml transparent cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All K2 products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized K2 service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11872483/67287349_large.webp